Thanks Gary & Scott , i will have a go this weekend at bread boarding these .

My Yamaha RM1X usually runs the sequencers ( via midi to Gate/trig) , the tempo per song usually varies from 90 BPM to around 170 BPM and i have 16 pulses per pattern measure clocking the diy sequencers.

Would that equate to around 0.5Hz to 4Hz clock frequency ?

Using the above speeds , how would i choose a low frequency operating setting on the freq doubler circuits that were kindly posted above .

...My Yamaha RM1X usually runs the sequencers ( via midi to Gate/trig) , the tempo per song usually varies from 90 BPM to around 170 BPM and i have 16 pulses per pattern measure clocking the diy sequencers...

Wouldn’t it be much simpler and more accurate to just double the clock pulse in the RM1X to drive the vari-step sequencer and then use a simple clock divide by 2 logic to drive the others?

Or maybe use an additional MIDI to gate/trig with the RM1X driving it at 32 pulses per measure?_________________varice

...My Yamaha RM1X usually runs the sequencers ( via midi to Gate/trig) , the tempo per song usually varies from 90 BPM to around 170 BPM and i have 16 pulses per pattern measure clocking the diy sequencers...

Wouldn’t it be much simpler and more accurate to just double the clock pulse in the RM1X to drive the vari-step sequencer and then use a simple clock divide by 2 logic to drive the others?

Or maybe use an additional MIDI to gate/trig with the RM1X driving it at 32 pulses per measure?

if his clock goes up to 2x the speed he wants.

and it would be simpler if he could, but not as much fun. __________________Richard_

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